Semi-Continuous Anaerobic Digestion of Water Hyacinth with Different Volatile Solid Levels for Biogas Production – A Mesocosm Experiment

• Autorzy: Thuan Nguyen Cong , Khanh Huynh Cong

Identyfikatory

DOI

10.12911/22998993/156622

• Języki publikacji: EN

Abstrakty

EN

Water hyacinth (WH) biomass is one of the popular materials in the Vietnamese Mekong Delta, a potential substrate for biogas production. The effectiveness of utilizing WH for producing biogas under anaerobic digestion was demonstrated in the previous studies, but the research was focused on the loading rate of about 1.0% volatile solid (VS). Therefore, in the present study, a semi-continuous anaerobic digestion experiment was conducted with the five levels of VS, including 1.0%VS, 1.5%VS, 2.0%VS, 2.5%VS, and 3.0%VS, to examine how loaded VS can affect biogas production. Each treatment was designed with three replications over 60 days. The measured parameters included pH, temperature (Temp; °C), redox potential (Eh; mV), daily produced biogas volume (L), cumulative biogas volume (L), and methane (CH₄) concentration (%) during the 60 days of the experiment. The obtained results showed that pH, tempt, and Eh parameters did not negatively affect biogas production. However, the volume of daily biogas in the treatment of 3.0%VS was higher than in other treatments. In addition, the cumulative biogas volume in the treatment of 3.0%VS was the highest and significantly different between all reactors (p<0.05). Meanwhile, the treatment of 1.0%VS was known with the lowest values. The study explored that the volume of biogas could be increased when the organic loading rate VS is increased.

Słowa kluczowe

EN

renewable energy; semi-continuous anaerobic digestion; volatile solid; water hyacinth

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2023
• Tom: Vol. 24, nr 2
• Strony: 230--237
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Thuan Nguyen Cong

• Department of Environmental Sciences, College of Environment and Natural Resources, Can Tho University, Campus II, 3-2 Str., Xuan Khanh Ward, Ninh Kieu District, 94000, Cantho, Vietnam

autor

Khanh Huynh Cong

• Department of Environmental Sciences, College of Environment and Natural Resources, Can Tho University, Campus II, 3-2 Str., Xuan Khanh Ward, Ninh Kieu District, 94000, Cantho, Vietnam
• Department of Environmental Sciences, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyomachi, 852-8521, Nagasaki, Japan

• https://orcid.org/0000-0002-8324-2763

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).